I've heard of this, and I think one of my classmates tried it (they had access to one from an old job). It didn't help them any bit. Save your money for stress relieving nights out or food. Use the alcohol lamp and a spatula.
FWIW, 99% of the class used the ROH lamp, and I think 25% scored "perfect 9s" on many, if not all, of their wax ups. "Perfect" because there really is no perfect, so a 9 is as close to perfect as we will get.